Pomeranchuk effect in twisted bilayer graphene

1. Isospin Pomeranchuk effect and the entropy of collective excitations in twisted bilayer graphene
Authors: Yu Saito, Fangyuan Yang, Xiaoxue Liu, Jingyuan Ge, Kenji Watanabe, Takashi Taniguchi, J. I. A. Li, Erez Berg, and Andrea F. Young

2. Entropic evidence for a Pomeranchuk effect in magic angle graphene
Authors: Asaf Rozen, Jeong Min Park, Uri Zondiner, Yuan Cao, Daniel Rodan-Legrain, Takashi Taniguchi, Kenji Watanabe, Yuval Oreg, Ady Stern, Erez Berg, Pablo Jarillo-Herrero, and Shahal Ilani

Recommended with a commentary by Francisco Guinea, Imdea Nanoscience, and Donostia International Physics Center
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DOI: 10.36471/JCCM_November_2020_01

A Newly found Bose-Einstein Condensate of G-wave molecules

Atomic Bose-Einstein condensate to molecular Bose-Einstein condensate transition
Authors: Zhendong Zhang, Liangchao Chen, Kaixuan Yao, and Cheng Chin

Recommended with a commentary by Tin-Lun Ho, The Ohio State University
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DOI: 10.36471/JCCM_November_2020_02

The pressure in ionic solutions

Osmotic pressure between arbitrarily charged planar surfaces: A revisited approach
Authors: Ram M. Adar and David Andelman
Eur. Phys. J. E. (2018) 41: 11; DOI 10.1140/epje/i2018-11620-1

Recommended with a commentary by Didier R. Long, Laboratoire Polymères et Matériaux Avancés, UMR 5268 Solvay/CNRS
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DOI: 10.36471/JCCM_November_2020_03

A New Approach to the Classical-Quantum Correspondence

Quantum eigenstates from classical Gibbs distributions
Authors: Pieter W. Claeys and Anatoli Polkovnikov

Recommended with a commentary by Daniel Arovas, University of California, San Diego
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DOI: 10.36471/JCCM_October_2020_01

Bogoliubov Fermi surface revealed

Discovery of segmented Fermi surface induced by Cooper pair momentum
Authors: Zhen Zhu, Michał Papaj, Xiao-Ang Nie, Hao-Ke Xu, Yi-Sheng Gu, Xu Yang, Dandan Guan, Shiyong Wang, Yaoyi Li, Canhua Liu, Jianlin Luo, Zhu-An Xu, Hao Zheng, Liang Fu, and Jin-Feng Jia

Recommended with a commentary by Carlo Beenakker, Instituut-Lorentz, Leiden University
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DOI: 10.36471/JCCM_October_2020_02

Hairs and pores in low-Reynolds-number flows

1. Nonlinear flow response of soft hair beds
Authors: José Alvarado, Jean Comtet, Emmanuel de Langre, and A. E. Hosoi
Nature Physics 13, 1014-1019, (2017); DOI: 10.1038/nphys4225

2. Bending and Stretching of Soft Pores Enable Passive Control of Fluid Flows
Authors: Jean-François Louf, Jan Knoblauch, and Kaare H. Jensen
Phys. Rev. Lett. 125, 098101 (2020); DOI: 10.1103/PhysRevLett.125.098101

Recommended with a commentary by Eleni Katifori, University of Pennsylvania
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DOI: 10.36471/JCCM_October_2020_03

Interaction between like-charged surfaces in water: does mean-field (Poisson Boltzmann) always apply for monovalent counterions?

Simulations of Nanoseparated Charged Surfaces Reveal Charge-Induced Water Reorientation and Nonadditivity of Hydration and Mean-Field Electrostatic Repulsion
Authors: Alexander Schlaich, Alexandre P. dos Santos, and Roland R. Netz
Langmuir 35, 551–560 (2019); DOI: 10.1021/acs.langmuir.8b03474

Recommended with a commentary by Albert Johner, Institut Charles Sadron Strasbourg
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DOI: 10.36471/JCCM_September_2020_01

Embarras de richesses in non-DLVO colloid interactions

1. Forces between solid surfaces in aqueous electrolyte solutions
Authors: Alexander M.Smith, Michal Borkovec, and Gregor Trefalt
Adv. Colloid. Int. Sci. 275, 102078, (2020); DOI: 10.1016/j.cis.2019.102078

2. Forces between silica particles in isopropanol solutions of 1:1 electrolytes
Authors: Biljana Stojimirovi?, Marco Galli, and Gregor Trefalt
Phys. Rev. Res. 2, 023315 (2020); DOI: 10.1103/PhysRevResearch.2.023315

Recommended with a commentary by Rudolf Podgornik, University of Chinese Academy of Science, and David Andelman, Tel Aviv University
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DOI: 10.36471/JCCM_September_2020_02

Doped copper oxygen planes in a clean habitat

Observation of small Fermi pockets protected by clean CuO2 sheets of a high-Tc superconductor
Authors: So Kunisada, Shunsuke Isono, Yoshimitsu Kohama, Shiro Sakai, Cédric Bareille, Shunsuke Sakuragi, Ryo Noguchi, Kifu Kurokawa, Kenta Kuroda, Yukiaki Ishida, Shintaro Adachi, Ryotaro Sekine, Timur K. Kim, Cephise Cacho, Shik Shin, Takami Tohyama, Kazuyasu Tokiwa, and Takeshi Kondo
Science 369 833-838 (2020); DOI: 10.1126/science.aay7311

Recommended with a commentary by Dung-Hai Lee, University of California, Berkeley
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DOI: 10.36471/JCCM_September_2020_03

Experimental observations of the universal cascade of bound states in quantum Ising chain in a magnetic field and E8 symmetry

1. Exceptional E8 symmetry in spin dynamics of quasi-one-dimensional antiferromagnet BaCo2V2O8
Authors: Haiyuan Zou, Y. Cui, X. Wang, Z. Zhang, J. Yang, G. Xu, A. Okutani, M. Hagiwara, M. Matsuda, G. Wang, G. Mussardo, K. Hódsági, M. Kormos, Z. Z. He, S. Kimura, Rong Yu, Weiqiang Yu, Jie Ma, and Jianda Wu

2. Observation of E8 particles in an Ising chain antiferromagnet
Authors: Zhao Zhang, Kirill Amelin, Xiao Wang, Haiyuan Zou, Jiahao Yang, Urmas Nagel, Toomas Rõõm, Tusharkanti Dey, Agustinus Agung Nugroho, Thomas Lorenz, Jianda Wu, and Zhe Wang
Phys. Rev. B 101, 220411(R) (2020); DOI: 10.1103/PhysRevB.101.220411

3. Experimental observation of quantum many-body excitations of E8 symmetry in the Ising chain ferromagnet CoNb2O6
Authors: Kirill Amelin, Johannes Engelmayer, Johan Viirok, Urmas Nagel, Toomas Rõõm, Thomas Lorenz, and Zhe Wang
Phys. Rev. B 102, 104431 (2020); DOI: 10.1103/PhysRevB.102.104431

Recommended with a commentary by Masaki Oshikawa, University of Tokyo
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DOI: 10.36471/JCCM_September_2020_04

The chicken and egg question in excitonic insulators

1. Nature of symmetry breaking at the excitonic insulator transition: Ta2NiSe5
Authors: G. Mazza, M. Rösner, L. Windgätter, S. Latini, H. Hübener, A. J. Millis, A. Rubio, and A. Georges
Phys. Rev. Lett. 124, 197601 (2020); DOI: 10.1103/PhysRevLett.124.197601

2. Nonlinear spectroscopy of collective modes in excitonic insulator
Authors: D. Golež, Z. Sun, Y. Murakami, A. Georges, and A. J. Millis

Recommended with a commentary by Atsushi Fujimori, Waseda University
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DOI: 10.36471/JCCM_August_2020_01

Can electrons attract each other without the help of phonons?

1. Electron attraction mediated by Coulomb repulsion
Authors: A. Hamo, A. Benyamini, I. Shapir, I. Khivrich, J. Waissman, K. Kaasbjerg, Y. Oreg, F. von Oppen, and S. Ilani
Nature 535, 395 (2016); DOI: 10.1038/nature18639

2. Charge Transfer Excitations, Pair Density Waves, and Superconductivity in Moire Materials
Authors: Kevin Slagle and Liang Fu

3. Correlated double-electron additions at the edge of a two-dimensional electronic system
Authors: Ahmet Demir, Neal Staley, Samuel Aronson, Spencer Tomarken, Ken West, Kirk Baldwin, Loren Pfeiffer, and Raymond Ashoori

Recommended with a commentary by Patrick A. Lee, MIT
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DOI: 10.36471/JCCM_August_2020_02

The pressure in solute-driven surface flows

Diffusio-osmosis and wetting on solid surfaces: a unified description based on a virtual work principle
Authors: Nigel Clarke, Nigel Gibbions and Didier R. Long
Soft Matter 16, 3485 (2020); DOI: 10.1039/C9SM02118C

Recommended with a commentary by Sriram Ramaswamy, Indian Institute of Science, Bengaluru
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DOI: 10.36471/JCCM_August_2020_03

A collider for anyons

Fractional statistics in anyon collisions
Authors: H. Bartolomei, M. Kumar, R. Bisognin, A. Marguerite, J.-M. Berroir, E. Bocquillon, B. Plaçais, A. Cavanna, Q. Dong, U. Gennser, Y. Jin, and G. Fève
Science 368, 173–177 (2020); DOI: 10.1126/science.aaz5601

Recommended with a commentary by Steven M. Girvin, Yale University
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DOI: 10.36471/JCCM_July_2020_01

At Last! Measurement of fractional statistics

Direct observation of anyonic braiding statistics at the ν = 1/3 fractional quantum Hall state
Authors: James Nakamura, Shuang Liang, Geoffrey C. Gardner, and Michael J. Manfra

Recommended with a commentary by Steven A. Kivelson (Stanford University) and Charles M. Marcus (Niels Bohr Institute, University of Copenhagen, and Microsoft Quantum Lab–Copenhagen)
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DOI: 10.36471/JCCM_July_2020_02

Can one hear the lineshape of a quantum drum?

Observation of a marginal Fermi glass using THz 2D coherent spectroscopy
Authors: Fahad Mahmood, Dipanjan Chaudhuri, Sarang Gopalakrishnan, Rahul Nandkishore, and N.P. Armitage

Recommended with a commentary by S.A. Parameswaran, University of Oxford
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DOI: 10.36471/JCCM_June_2020_01

Machine learning many-electron wave functions via backflow transformations

1. Backflow Transformations via Neural Networks for Quantum Many-Body Wave-Functions
Authors: D. Luo and B. K. Clark
Phys. Rev. Lett. 122, 226401 (2019); DOI:10.1103/PhysRevLett.122.226401

2. Ab-Initio Solution of the Many-Electron Schrödinger Equation with Deep Neural Networks
Authors: D. Pfau, J. S. Spencer, A. G. de G. Matthews, and W. M. C. Foulkes

3. Deep neural network solution of the electronic Schrödinger equation
Authors: J. Hermann, Z. Schätzle, and F. Noé

Recommended with a commentary by Markus Holzmann, Univ. Grenoble Alpes, CNRS, LPMMC
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DOI: 10.36471/JCCM_May_2020_01

AI theorist? Not yet

AI Feynman: A physics-inspired method for symbolic regression
Authors: Silviu-Marian Udrescu and Max Tegmark
Sci. Adv. 6 : eaay2631, 2020; DOI: 10.1126/sciadv.aay2631

Recommended with a commentary by Ilya Nemenman, Emory University
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DOI: 10.36471/JCCM_May_2020_02

What drives superconductivity in twisted bilayer graphene?

1. The interplay of insulating and superconducting orders in magic-angle graphene bilayers
Authors: Petr Stepanov, Ipsita Das, Xiaobo Lu, Ali Fahimniya, Kenji Watanabe, Takashi Taniguchi, Frank H. L. Koppens, Johannes Lischner, Leonid Levitov, and Dmitri K. Efetov

2. Decoupling superconductivity and correlated insulators in twisted bilayer graphene
Authors: Yu Saito, Jingyuan Ge, Kenji Watanabe, Takashi Taniguchi, and Andrea F. Young

3. Tuning electron correlation in magic-angle twisted bilayer graphene using Coulomb screening
Authors: Xiaoxue Liu, Zhi Wang, K. Watanabe, T. Taniguchi, Oskar Vafek, and J.I.A. Li

4. Nematicity and Competing Orders in Superconducting Magic-Angle Graphene
Authors: Yuan Cao, Daniel Rodan-Legrain, Jeong Min Park, Fanqi Noah Yuan, Kenji Watanabe, Takashi Taniguchi, Rafael M. Fernandes, Liang Fu, and Pablo Jarillo-Herrero

Recommended with a commentary by T. Senthil, Massachusetts Institute of Technology
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DOI: 10.36471/JCCM_May_2020_03

Quantum scars and partial breaking of ergodicity

1. Probing many-body dynamics on a 51-atom quantum simulator
Authors: Hannes Bernien, Sylvain Schwartz, Alexander Keesling, Harry Levin, Ahmed Omran, Hannes Pichler, Soonwon Choi, Alexander S. Zibrov, Manuel Endres, Markus Greiner, Vladan Vuletić and Mikhail D. Lukin
Nature 551, 579-584 (2017); DOI: 10.1038/nature24622

2. Weak ergodicity breaking from quantum many body scars
Authors: C. J. Turner, A. A. Michailidis, D. A. Abanin, M. Serbyn, and Z. Papić
Nature Physics 14, 745-749 (2018); DOI: 10.1038/s41567-018-0137-5

Recommended with a commentary by Rahul Nandkishore, University of Colorado at Boulder
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DOI: 10.36471/JCCM_April_2020_01